https://padlet.com/anthonydu0122/plate_tectonics Geographic Skills en-us 2017-10-31 00:31:29 UTC 2025-10-02 22:45:30 UTC hello@padlet.com https://padlet-assets.s3.amazonaws.com/icons/Xmastree.png anthonydu0122 https://padlet.com/anthonydu0122/plate_tectonics/wish/201972137 This page is about the Plate Tectonics. I will put some pictures and some information about about it on this webpage. ]]> 2017-10-31 00:36:54 UTC https://padlet.com/anthonydu0122/plate_tectonics/wish/201972137 anthonydu0122 https://padlet.com/anthonydu0122/plate_tectonics/wish/201972582 This is the Wikipedia of the Plate Tectonics. If you want to know all the information, just go and check it out.]]> 2017-10-31 00:40:06 UTC https://padlet.com/anthonydu0122/plate_tectonics/wish/201972582 anthonydu0122 https://padlet.com/anthonydu0122/plate_tectonics/wish/201972821 This is the Plate Tectonics Map of the earth. Click to view full image. ]]> 2017-10-31 00:42:01 UTC https://padlet.com/anthonydu0122/plate_tectonics/wish/201972821 anthonydu0122 https://padlet.com/anthonydu0122/plate_tectonics/wish/201973359 Divergent boundaries occur where two plates slide apart from each other. At zones of ocean-to-ocean rifting, divergent boundaries form by seafloor spreading, allowing for the formation of new ocean basin. As the ocean plate splits, the ridge forms at the spreading center, the ocean basin expands, and finally, the plate area increases causing many small volcanoes and/or shallow earthquakes. At zones of continent-to-continent rifting, divergent boundaries may cause new ocean basin to form as the continent splits, spreads, the central rift collapses, and ocean fills the basin. Active zones of Mid-ocean ridges (e.g., Mid-Atlantic Ridge and East Pacific Rise), and continent-to-continent rifting (such as Africa's East African Rift and Valley, Red Sea) are examples of divergent boundaries.

]]> 2017-10-31 00:45:26 UTC https://padlet.com/anthonydu0122/plate_tectonics/wish/201973359 anthonydu0122 https://padlet.com/anthonydu0122/plate_tectonics/wish/201973361 Convergent boundaries (Destructive) (or active margins) occur where two plates slide toward each other to form either a subduction zone (one plate moving underneath the other) or a continental collision. At zones of ocean-to-continent subduction (e.g. the Andes mountain range in South America, and the Cascade Mountains in Western United States), the dense oceanic lithosphere plunges beneath the less dense continent. Earthquakes trace the path of the downward-moving plate as it descends into asthenosphere, a trench forms, and as the subducted plate is heated it releases volatiles, mostly water from hydrous minerals, into the surrounding mantle. The addition of water lowers the melting point of the mantle material above the subducting slab, causing it to melt. The magma that results typically leads to volcanism.^[12] At zones of ocean-to-ocean subduction (e.g. Aleutian islands, Mariana Islands, and the Japanese island arc), older, cooler, denser crust slips beneath less dense crust. This motion causes earthquakes and a deep trench to form in an arc shape. The upper mantle of the subducted plate then heats and magma rises to form curving chains of volcanic islands. Deep marine trenches are typically associated with subduction zones, and the basins that develop along the active boundary are often called "foreland basins". Closure of ocean basins can occur at continent-to-continent boundaries (e.g., Himalayas and Alps): collision between masses of granitic continental lithosphere; neither mass is subducted; plate edges are compressed, folded, uplifted.

]]> 2017-10-31 00:45:26 UTC https://padlet.com/anthonydu0122/plate_tectonics/wish/201973361 anthonydu0122 https://padlet.com/anthonydu0122/plate_tectonics/wish/201973364 Transform boundaries occur where two lithospheric plates slide, or perhaps more accurately, grind past each other along transform faults, where plates are neither created nor destroyed. The relative motion of the two plates is either sinistral (left side toward the observer) or dextral (right side toward the observer). Transform faults occur across a spreading center. Strong earthquakes can occur along a fault. The San Andreas Fault in California is an example of a transform boundary exhibiting dextral motion.

]]> 2017-10-31 00:45:27 UTC https://padlet.com/anthonydu0122/plate_tectonics/wish/201973364 anthonydu0122 https://padlet.com/anthonydu0122/plate_tectonics/wish/201974018 Plate tectonics is a scientific theory describing the large-scale motion of seven large plates and the movements of a larger number of smaller plates of the Earth's lithosphere, since tectonic processes began on Earth between 3 and 3.5 billion years ago. The model builds on the concept of continental drift, an idea developed during the first decades of the 20th century. The geoscientific community accepted plate-tectonic theory after seafloor spreading was validated in the late 1950s and early 1960s.]]> 2017-10-31 00:49:26 UTC https://padlet.com/anthonydu0122/plate_tectonics/wish/201974018 anthonydu0122 https://padlet.com/anthonydu0122/plate_tectonics/wish/201975159 This is the map of the Plate Motions. ]]> 2017-10-31 00:56:07 UTC https://padlet.com/anthonydu0122/plate_tectonics/wish/201975159 anthonydu0122 https://padlet.com/anthonydu0122/plate_tectonics/wish/201976279 2017-10-31 01:03:08 UTC https://padlet.com/anthonydu0122/plate_tectonics/wish/201976279 anthonydu0122 https://padlet.com/anthonydu0122/plate_tectonics/wish/201977987 Most earthquakes occur in narrow belts that correspond to the locations of lithospheric plate boundaries.]]> 2017-10-31 01:13:44 UTC https://padlet.com/anthonydu0122/plate_tectonics/wish/201977987